Combined driving-gear and brake for motor-vehicles.



No. 708,356. Patented Sept; 2, I902. H. H. HENNEGIN.

COMBINED DRIVING GEAR AND BRAKE FOR MOTOR VEHICLES.

(Applicatinn filed Apr. 8, 1901. (No Model.)

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FFlCE.

HERBERT I'I. IIENNEGIN, OF ST. LOUIS, MISSOURI, ASSIGNOR TO INTERNA- TIONAL MOTOR COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

COMBINED DRl\llN{G '--GE AR AND BRAKE FOR MOTOR-VEHICLES.

SPECIFICATION forming pm a Letters Patent No. 708,356, dated September 2, 1902.

Application filed AprilS, 1901. Serial No. 54,964. (No model.)

To aZZ whom/it may concern:

Be it known that I, HERBERT I-I. IIENNEGIN, of the city of St. Louis, State of Missouri, have invented certain new and useful Improvements in a Combined Driving-Gear and Brake for Motor-Vehicles, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to a combined drivinggear and brake for motor-vehicles; and it consists of the novel construction, combination, and arrangement of parts hereinafter shown, described, and claimed.

The object of my invention is to provide an improved motor-vehicle brake and combined speed-changing and reverse gear.

Figure 1 is a sectional side elevation of parts of a motor-vehicle having my invention applied thereto, said section being taken on the line at a; of Fig. 2. Fig. 2 is a sectional plan view of the same.

1 indicates the frame on which the drivinggear is mounted, and 2 represents the main 2 5 shaft of the motor. (Not shown.) The motor may of course be of any desired formsuch, for instance, as an explosive-engine or a steam-engine.

My invention is designed especially for use 30 in connection with an explosive-engine, in

which the main shaft carrying the drivingwheel revolves continuously in one direction.

The main shaft 2 is preferably mounted in an extra long bearing 3, carrying at one end an I 5 antifriction thrust-bearing 4E, composed of a series of balls 5, interposed between the moving surface of the fly-wheel 6 and the stationary surface 7 of said bearing. The fly-wheel 6 is provided on one face with a friction- 40 plate 8.

and upon the outer projecting ends. of which are mounted the usual sprocket-wheels or pinions 15, which latter are to be engaged by the usual chains 16, extending to ordinary sprocket-wheels upon the driving-wheels of thevehicle. (Not shown.) Thearms13serve to space apart the two shafts 9 and 1t, and motion is imparted from the former to the latter by means of an ordinary train of gear-Wheels 17, contained within a swinging casing 18, the uppermost gear only being shown. 19 indicates a pair of rock-levers mounted upon a transverse shaft 20, extending parallel with said shaft 9 and directly in front of the same. The upper ends of said levers 19 are connected to the upper free ends of the arms 13 by means of rods 21, and the lower ends of said rock-levers are connected by rods 22 to depending arms 23, fixed upon a transverse rock-shaft 24. Said shaft 24 is rocked by ineansof a combined hand and foot lever 25, the upper end of which is provided with a handhold, below which is fashioned a foothold 26, whereby said lever may be manipulated by means of either the hand or foot of the operator. The said lever 25 is locked in position by means of the pawl 27, which is pivoted upon said lever at a point directly above atoothed sector 28. Said pawl is normally held in engagement with said toothed sector by means of a spring 29, secured to one of the free ends of said pawl and having its upper end fastened to said lever 25. An anxiliary handle of common construction is connected to the upper portion of said lever 25, and a rod 31 extends downwardly and has its lower end connected to an arm 32 of said pawl, whereby said pawl may be manipulated by the operator in grasping the handhold of said lever 25. I

indicates a toothed sleeve mounted to slide upon the shaft 20 and having fixed thereon a brake-block 3a to engage the metallic friction-surface 35 of the friction-wheel 10. An arm 36 projects from said sleeve and is mounted to slide in the groove 11 in the hub of said friction-wheel 10. This sliding engagement of the arm 36 with the groove 11 facilitates the forward bodily movement of the wheel 10 and the application of the periphery of the same against the brake-shoe 34. The loose connection also permits the revolution and sliding movement of the wheel 10. The said toothed sleeve 33 is moved upon the shaft by means of a pinion 37, meshing with the teeth of said toothed sleeve, and said pinion is fixed upon a vertical controllershaft 38, mounted in suitable bearings in front of the operators seat 39. Said controller-shaft is provided atits upper end with a suitable handle 40. The friction-wheel 10 is caused to contact with the friction-plate 8 by means of a spring 41, one end of which is secured to the frame 1 and the opposite end of which is fastened to the lower portion of one of said rock-levers 19.

The operation is as follows: The main shaft 2 beingdriven in the direction indicated by the arrow in Fig. 1, the fly-wheel 6 will of course be rotated in a corresponding direction, and with the parts in the position shown the friction-wheel 10 will be driven in a corresponding direction,as will also the shaft 9, gear-Wheel17, counter-shaft 14, and sprocket-wheels 15, and the vehicle will be propelled in a given direction as long as the parts remain in the relation in which they are shown. The frictionwheel 10 being located at the periphery of the friction-plate 8 causes the same to be driven at the highest speed. When the operator desires to reduce the speed of the vehicle, he grasps the handle or causes his foot to engage the footpiece 26, and thereby throws the lever forwardly, which has the effect of urging the lower ends of the rocklevers 19 rearwardly in opposition to the power of the spring 41, thereby withdrawing the said friction-wheel 10 from contact with the said friction-plate 8. Then he grasps the controller-handle 40 and rotates the pinion 37 in the direction indicated by the arrow in Fig. 2, thereby sliding the toothed sleeve 33 and the friction-wheel 10 in a corresponding direction and locate said friction-wheel nearer the center of said friction-plate, whereby the same will be driven at a reduced speed. In order to bring the vehicle to a stop, the lever 25 is thrown still farther forwardly until the brake-shoe 34 is brought into contact with the frictional surface 35 of said friction-wheel 10, thereby bringing said wheel to a sudden stop and of course arresting the movement of the vehicle. Then it is desired to reverse the movement, the operator turns the controller-handle still farther in the direction above indicated until the friction-wheel 10 is located upon the opposite side of the frictionplate 8, and thus said friction-wheel 10 is again thrown into contact with said frictionplate 8, and the movement of the vehicle will thereby be reversed. The end thrust upon the main shaft 2 is received by the balls '7, and considerable friction is thereby obviated.

My improved driving-gear and brake for motor-vehicles has proven in actual practice to be very efficient and reliable.

I claim- 1. A driving-gear for motor-vehicles comprising a main operating-shaft, a frictionwheel at one end thereof,a shaft 14,upwardlyextending arms pivoted to the shaft 14, a friction-disk supported between the arms and adapted to engage the friction-wheel, a shaft 20, rock-levers pivoted to the shaft 20 and connections 21 between the upper end of the pivoted arms and the upper ends of the rocklevers, and means for operating the rocklevers to throw the friction-disk into and out of engagement with the friction-wheel, substantially as described.

2. In combination with motor-driven instrumentalities, speed-changing devices in communication therewith comprising opposing friction-disks, means for shifting one of the disks across the face of the other, a brake carried by the disk-shiftin g means,and means for swinging the shiftable disk toward and from the other disk and into engagement with the brake; substantially as described.

3. In combination with motor-driven instrumentalities, speed-changing devices in communication therewith comprising opposing disks, means for shifting one of the disks across the face of the other, a brake movable with said shiftable disk, and means for causing a frictional engagement between said shiftable disk and the brake, substantially as described.

4. A combined driving-gear and brake for motor-vehicles, comprising a revoluble fric tion-plate,a friction-wheel mounted to engage said friction-plate and shiftable across the face thereof, a brake shiftable with the friction-wheel, and means for retracting said friction-wheel from engagement with said friction-plate and forcing the same into contact with said brake; substantially as described.

5. A combined driving-gear and brake for motor-vehicles comprising a revoluble friction-plate,a friction-wheel mounted to engage said friction-plate and shiftable across the face thereof, a brake shiftable with the friction-wheel, and means operating by its initial movement to retract the friction-wheel from engagement with the friction-plate, and by further movement to force said friction-wheel into contact with the brake; substantially as described.

6. A combined driving-gear and brake for motor-Vehicles, constructed with a frictionplate adapted to revolve continuously in a given direction, a friction-wheel mounted to engage said friction-plate on either side of the center of said plate, a brake for said friction-wheel and adapted to be shifted therewith, and a ball-bearing for receiving the thrust of said friction-plate, substantially as specified.

7. A combined driving-gear and brake for motor-vehicles, having a friction-wheel 10 provided with a peripheral friction-surface 35, a continuously-revolving friction-plate,

meansfor urging said friction-wheel into conling said devices, a toothed sector, a pawl tact with said friction-plate, a toothed rack having an arm to be engaged by the operafor moving said. friction-Wheel nearer to or tors foot, an auxiliary handle on said lever, farther from the periphery of said frictionand a connection between said auxiliaryhan- I 5 5 plate, and a brake carried by said toothed (lie and said pawl, substantially as specified. rack and adapted to engage said frictional In testimony whereof I affix my signature surface of said friction-wheel, substantially in presence of two witnesses.

as specified. HERBERT H. I-IENNEGIN.

8. In a driving-gear for motor-vehicles, de Witnesses: to vices for changing the speed of the vehicle, J D. RIPPEY,

a combined hand and foot lever for control- JOHN C. HIGDON. 

